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Discussion Groups | Analog Devices DSPs | Multiprocessing ADSP-21065L
Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).
Multiprocessing ADSP-21065L - Mohamed Akresh - Jan 29 11:55:00 2004
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Hello all, I am trying to connect two ADSP-21065L EZ-Lab. I have a problem in finding the Hardware Interface between the two processors. It is stated in the ADSP-21065L User's Manual for particular enviroments that the pins must be connected between the two processors as follows: ADDR 23-0, DATA 31-0, MS 3-0, RD, WR, ACK, SBTS, SW, BR 2-1, RESET, CLKIN I did't find the CLKIN pin in the User'Manual from the Board, so i was not able to short together these pins on the both processors. please try to help me in this topic and thanx best regards __________________________________________________________________ Gesendet von Yahoo! Mail - http://mail.yahoo.de Mit Yahoo! Suche finden Sie alles: http://suche.yahoo.de |
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Re: Multiprocessing ADSP-21065L - Mike Rosing - Jan 29 20:21:00 2004
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On Thu, 29 Jan 2004, [iso-8859-1] Mohamed Akresh wrote: > I am trying to connect two ADSP-21065L EZ-Lab. > I have a problem in finding the Hardware Interface > between the two processors. > It is stated in the ADSP-21065L User's Manual for > particular enviroments that the pins must be connected > between the two processors as follows: > ADDR 23-0, DATA 31-0, MS 3-0, RD, WR, ACK, SBTS, SW, > BR 2-1, RESET, CLKIN > I did't find the CLKIN pin in the User'Manual from the > Board, so i was not able to short together these pins > on the both processors. > please try to help me in this topic and thanx I don't have the ezkit, but the manual says ball j1 on the mini-bga, and pin 30 on the mqfp. Data sheet is better word than manual I guess in this case. Patience, persistence, truth, Dr. mike |
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Re: Multiprocessing ADSP-21065L - Kenneth Porter - Jan 30 19:39:00 2004
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--On Thursday, January 29, 2004 12:55 PM +0100 Mohamed Akresh <> wrote: > I am trying to connect two ADSP-21065L EZ-Lab. Be careful with this: The bus speed is very high and a simple ribbon cable won't do it, as the edge rates result in lots of cross-talk in the data signals. There's some special ribbon cable made for this kind of thing, with adjacent conductors "shaped" to not be parallel. As I didn't have any when I did this, my hardware buddy used an Exacto knife and coffee stirrers to fake some up from regular ribbon cable. Looked silly but worked pretty well. |
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